"Sentiment Analysis" text appearing multiple times on reports page

Fixed: "Sentiment Analysis" text appearing multiple times on the report page.

Summary:
Resolved an issue where the "Sentiment Analysis" label appeared multiple times under `/node/{nid}/analyze/ai_sentiment_analyzer`. The markup was likely duplicated during render. Cleaned up the code to ensure the title only appears once.

I've completed the fix for issue #3517391 ("Sentiment Analysis" text appearing multiple times) in the analyze module, not analyze_ai_sentiment.

💡 Test steps:
1. Configure Sentiment Analyzer on a content type.
2. View a content node.
3. Navigate to Analyze → Sentiment Analysis.
4. Confirm that the text appears **only once**.

📌 Related Issue: #3517391